The symptoms of narcosis may be caused by other factors during a dive: ear problems causing disorientation or nausea; early signs of oxygen toxicity causing visual disturbances; or hypothermia causing rapid breathing and shivering. Nevertheless, the presence of any of these symptoms should imply narcosis.
What's a Coronarita? It's a margarita with an upside-down Corona sticking out of it. Does it taste any good? You be the judge!
1 Oil Upside-Down Cake: Substitute 1/3 cup vegetable oil for the butter, increase the pineapple juice or milk to Â¾ cup, and add Â½ teaspoon baking soda.  Pina Colada Upside-Down Cake: Substitute 2/3 cup unsweetened coconut milk for the juice and add Â¾ teaspoon rum extract and 1/3 cup (1 ounce/30 grams) flaked coconut.